NNN-OV
IUCN Not AssignedNature Reserves owned by professional nature management organizations · 2017
632 km²
Municipality · NLD
Netherlands
Species observed
5 820
Observations
246 660
Area
166,9km²
Sample of 34 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Tissu écologique de Dalfsen : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 106 interactions GloBI sur 5 types (connectance 18.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
5 820 distinct species · 246 660 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
9,8°C
Annual rain
882mm
Warmest m°
21,8°C
Coldest m°
-0,0°C
Elevation: 3 m on average (min -0 m, max 21 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
5,6
Org. C
77,4g/kg
Clay
12,8%
Sand
67,8%
Silt
19,4%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology metrics for this exact territory
Stream length here
47,7km
Lake surface here
0,01km²
Basins crossed
1
Max stream order
5
Max drainage
4 376km²
Discharge in basins
20,8m³/s
Mean precip.
773mm/an
Mean T°
9,1°C
Moisture idx
0,11
Max snow
13%
Mean runoff
461mm/an
Mean elev. (basins)
3m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
1hab/km²
Night light
1,1nW
Built-up
157,4%
Pesticides
58,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Nature Reserves owned by professional nature management organizations · 2017
632 km²
Nature Conservation Act · 2013
41 km²
Special Areas of Conservation (Habitats Directive) · 2013
41 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN